Efficient synthesis of 1, 4-disubstituted triazolyl N-carboxamides via a simple and convenient MCR using basic alumina as solid support
R Pal, S Sarkar, N Chatterjee, AK Sen
Index: Pal, Rammyani; Sarkar, Swarbhanu; Chatterjee, Nivedita; Sen, Asish Kumar Tetrahedron Letters, 2013 , vol. 54, # 41 p. 5642 - 5646
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Abstract
Abstract A microwave assisted green protocol for the synthesis of 1, 4-disubstituted triazolyl N-carboxamides was explored using basic alumina as solid support. The method allows domino Ullmann-type reaction, Click reaction and formation of ester or amide linkages in a single reaction vessel using Cu (phen)(PPh 3) Br and CMPA as catalyst and basic alumina as solid support in high yield. The protocol did not require addition of any external ligands ...
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